LDN1235 – Shark Nebula
LDN1235, known as the Shark Nebula and also catalogued as LM390, is a very faint dark and reflection nebula in the constellation Cepheus. Its visual magnitude is unknown, it has an apparent size of approximately 9 × 4 arcminutes and lies about 650 light-years from Earth.
General information
- Constellation
- Cepheus
- Category
- Nebulae
- Date
- 15 September 2022
Capture
- Total time
- 7h 30min
- Subframes
- 360s (CLS: 45x) bin1; 360s (R: 10x, G: 10x, B: 10x) bin2
- Gain / Offset
- 125 / 30
- Calibration
- Not specified
Equipment
- Telescope
- TS102 f/5.6
- Camera
- ZWO ASI294MM at -5 °C
- Filters
- CLS, R, G and B Astronomik, 36 mm
- Mount
- Sky-Watcher HEQ5 Pro with belt drive
- Guiding
- PHD2, Guide scope 60 mm f/4 + ASI224MC + Pegasus Astro UCH + PPBMicro
- Focuser
- ZWO EAF
- Filter wheel
- ZWO EFW 7pos
Processing and environment
- Processing
- Stacked and post-processed with PixInsight 1.8.9
- Acquisition
- NINA + Cartes du Ciel
- Location
- l'Ampolla, Tarragona
- Sky
- Bortle 4